POWER SUPPLY CONTROL BOARD Russian patent published in 2010 - IPC H02B15/00 

FIELD: electricity.

SUBSTANCE: control board is intended for controlling a.c. and d.c. power distribution among power consumers, monitoring storage batteries state, protecting power supply units from overcurrent and controlling level of supply voltages. The device is designed to: recieve and distribute supply voltages coming from three independent a.c. sources 280/220 V with frequency 50 Hz (industrial network, generator 1, generator 2); recieve and distribute supply voltages coming from three indepedent d.c. sources including rectifying units (27 V voltage is used) and from storage batteries (24 V voltage is used); automatic transfer to power supply from storage batteries when voltage is lost from two 27 V sources; monitoring of storage batteries state (charge, discharge and connection). Magnitude of swithing a.c. current - to 16 A per each phase. Magnitude of switching direct current - to 30 A and to 50 A per four lines of each nominal. The unit ensures: light indication to indicate primary voltage availability at input; light indication of voltage supply to output; a.c. network phases voltage; direct 27 V voltage; noise alarm of storage batteries state; sequence of phases at "AIR CONDITIONER" output; mean time operation.

EFFECT: expanded functional capabilities.

7 cl, 8 dwg